B1901 2018 Toyota RAV4 Code - Open in Front Pretensioner Squib Right Circuit
Quick Answer
The Front Pretensioner Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and Front Seat Outer Belt Assembly Right (RH). Common causes include Faulty Front Seat Outer Belt Assembly Right (RH) (Front Pretensioner Squib Right), Front Seat Outer Belt Assembly Right harness is open or shorted, Front Seat Outer Belt Assembly Right circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B1901 2018 Toyota RAV4 indicates Open in Front Pretensioner Squib Right Circuit.
- Common causes
- Common causes include Faulty Front Seat Outer Belt Assembly Right (RH) (Front Pretensioner Squib Right), Front Seat Outer Belt Assembly Right harness is open or shorted, Front Seat Outer Belt Assembly Right circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B1901 2018 Toyota RAV4 Description
What are the Possible Causes of the DTC B1901 2018 Toyota RAV4?
- Faulty Front Seat Outer Belt Assembly Right (RH) (Front Pretensioner Squib Right)
- Front Seat Outer Belt Assembly Right harness is open or shorted
- Front Seat Outer Belt Assembly Right circuit poor electrical connection
- Faulty Center Airbag Sensor Assembly
How to Fix the DTC B1901 2018 Toyota RAV4?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1901 2018 Toyota RAV4 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the B1901 2018 Toyota RAV4 code?
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Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
Frequently Asked Questions about B1901 2018 Toyota RAV4 Code
1. What does the OBDII code B1901 mean on a 2018 Toyota RAV4?
The code B1901 indicates an "Open in Front Pretensioner Squib Right Circuit," meaning there's an issue with the electrical circuit for the front passenger seatbelt pretensioner.
2. What are the common symptoms of code B1901 in a 2018 Toyota RAV4?
Symptoms may include the airbag warning light illuminating on the dashboard and the seatbelt pretensioner system not functioning properly in the event of an accident.
3. What causes the B1901 code to appear on a 2018 Toyota RAV4?
Common causes include a damaged or disconnected pretensioner squib wiring harness, a faulty seatbelt pretensioner, corrosion in the electrical connectors, or an issue with the airbag control module.
4. Is it safe to drive with the B1901 code active?
It is not recommended, as the seatbelt pretensioner system may not work correctly in a collision, compromising occupant safety.
5. How do you diagnose the B1901 code on a 2018 Toyota RAV4?
Diagnosis typically involves using an OBDII scanner to confirm the code, inspecting the wiring and connectors for damage or corrosion, and testing the seatbelt pretensioner with a multimeter for continuity.
6. Can a loose connector cause the B1901 code in a 2018 Toyota RAV4?
Yes, a loose or improperly connected wiring harness can cause an open circuit, triggering the B1901 code.
7. How is the B1901 code fixed on a 2018 Toyota RAV4?
Repairs may include reconnecting or replacing damaged wiring, cleaning corroded connectors, or replacing a faulty seatbelt pretensioner assembly.
8. What tools are needed to repair the B1901 code?
Common tools include an OBDII scanner, a multimeter for electrical testing, and basic hand tools for accessing and repairing wiring or connectors.
9. How much does it cost to fix the B1901 code on a 2018 Toyota RAV4?
Repair costs can vary but may range from $100 to $500, depending on whether the issue is with wiring or if the seatbelt pretensioner needs replacement.
10. Can I clear the B1901 code without fixing the issue?
While you can clear the code with an OBDII scanner, it will likely reappear if the underlying problem is not resolved, and the safety system will remain compromised.
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